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SPECIAL SPECIFICATION 6326 OC3 Microwave Radio

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SPECIAL SPECIFICATION 6326 OC3 Microwave Radio 2004 Specifications CSJ 0902-48-433 SPECIAL SPECIFICATION 6326 OC3 Microwave Radio 1. General. Furnish and install Wireless OC3 Microwave Radio as shown on the plans, as detailed in the Special Specifications, and as directed. Provide all similar OC3 Microwave Radios from the same manufacturer and are of the same model. Furnish new, corrosion resistant materials. Furnish, assemble, fabricate and install materials in strict accordance with the details shown on the plans and in the specifications. Provide an interference analysis for each TXDOT OC3 Microwave location to identify potential sources of interference. Adjust antenna polarities and channel plans on equipment to minimize interference from other sources. If the interference analysis shows possibility for interference at the TXDOT sites, conduct in-field monitoring to determine if actual interference exists. Perform a frequency search and conduct all other steps required to obtain an operating frequency license from the FCC to operate the links to be installed. Include licenses for all equipment, where required, for any software or hardware in the system. Supply a medical statement as to the safety of the unit to the general public (example: Pacemakers, etc.). 2. Materials. A. Functional Requirements. Ensure the Wireless OC3 Microwave Radio is a point to point, licensed, microwave radio that modulates/demodulates the 155 Mbps Sonet/SDH payloads, manages local and remote units, and must provide I/O line alarms, and interfaces for 1.544 Mbps Wayside channel, 64 Kbps User channel and 64 Kbps Order Wire channel. Ensure the OC3 Microwave system includes three major components, Indoor Unit (IDU), Outdoor Unit (ODU), and Antenna. Provide a single coaxial cable (Belden 9914, LMR-400, or equivalent) cable, carrying communications and DC power to connect the IDU to the ODU. Ensure the OC3 Microwave system must be a split radio configuration utilizing a IDU (Indoor Unit) and an ODU (Outdoor Unit). The IDU must be a compact, 1U-high unit, mount compatible for standard 19 in. racks. The IDU modulates/demodulates the 155 Mbps Sonet/SDH payloads, manages local and remote units, and must provide I/O line alarms, and interfaces for 1.544 Mbps Wayside channel, 64 Kbps User channel and 64 Kbps Order Wire channel. 1-11 XXXX 01-06 The IDU also interfaces a Local Maintenance Terminal or Network Management System. In addition, provide status alarms and indicators on the front panel. Provide a single IDU capable of operation as a: 1x1 hot-standby 1x1 hot-standby/space diversity 2 non-protected radio terminals The main IDU modules should include: • The following Network Interface combinations: OC3, OC3-C, 3xDS3, 100BTX, 2x100BTX, 100BTX+DS3, 100BTX+8xDS1, 2xDS3+8xDS1 • Multiplexer (MUX) • Modem • Manager Card • Cable Interface • Power Supply Design the ODU to be attached directly to the antenna using latches for frequencies of 11 Ghz and higher. For 6 Ghz ODU’s, the ODU must be a remote mount type with a flexible waveguide. The antenna must be mounted on a standard mounting pole. The ODU must be enclosed in a compact, weatherproof enclosure. The ODU major modules should include: • T/R Module - High sensitivity RF circuitry with full band frequency tuning range. • Controller - Controls the ODU and provides ODU status signals. • Accurate received signal level (RSL) reading (in dBm) should be available through a BNC connector. The ODU should also be provided with a headset for initial antenna alignment using a tone. • Cable Combiner • Power Supply. Recommend the appropriate frequency allocation to meet the link requirements listed in the plans. Provide OC3 Microwave system capable of operating in the frequency range of 6, 11, or 18 GHz, or as directed. The OC3 Microwave system will have an RS232 (PPP, SLIP) and a Ethernet bridge 10Base-T Network Management Interface and a RS232 (standard ASCII terminal) interface for local configuration and monitoring. The OC3 Microwave system shall use a single coaxial cable between the IDU and ODU. The cable must carry the following signals. 2-11 XXXX 01-06 • Transmit and receive modulated signals. • Transmit and receive control data and communications between the IDU manager and the ODU controller. • DC power from the IDU to the ODU. The OC3 Microwave system must: • Automatically issue an alarm if the cable is disconnected • Provide protection against shorts • Automatically compensate for cable length up to 1000 ft. The required power supply features of the OC3 Microwave system are: • Standard Input: -48 VDC • DC input range: -40.5 VDC to -72 VDC • DC/DC converter. • Reverse polarity protection. • Over-voltage and over-current protection. • Detection of IDU-ODU cable alarms (i.e. cable open, cable short). • The ODU must receive its DC power from the IDU. • Terminal (IDU + ODU) power consumption should not exceed 100W. Provide the OC3 Microwave system Multiplexer (MUX) module to function as a SONET Regenerator. On the line side it should interface the OC-3 stream, and on the radio side the Modem module. Equip the OC3 Microwave system with a 16-state QAM modem for frequencies of 18- 38 GHz and with a 128-state QAM modem for 6 - 18 GHz frequencies. The modem must be equipped with Digital Signal Processing functions as follows: • Digital IF - I/Q modulator/demodulator whose functions are: - Conversion of the modulated signal to/from the IF frequency. - Automatic level equalization on the signal from ODU. - Protection against overloads. • Timing recovery techniques employing digital tracking loop. • FEC (Forward Error Correction) which ensures unfaded BER lower than 10-13. 3-11 XXXX 01-06 The OC3 Microwave system Manager module controls and manages all system modules of the local and remote units. The Manager module must support the user interface through Ethernet or PPP/SLIP to the management station, and an ASCII terminal port. A local or dumb terminal must be able to be used for basic configuration and performance monitoring. Other features must include: • Log file • Remote software and firmware download (upgrades can be downloaded from local to remote) • Performance monitoring In addition to the above listed requirements the following features are required: • For IP applications, the system should incorporate dynamic bandwidth allocation between its 100BT ports. • The system design should offer easy scalability for higher capacities in the future, without adding more antennas. • The system should have add/drop capabilities for deployments in SONET ring or chain applications dropping 1-32 DS1s per node. • The proposed system should have an optional OC3 DES built-in encryption. The OC3 Microwave Radios shall meet the minimum requirements: Radio Specification 6 GHz 11 GHz 18 GHz Standards FCC FCC FCC Operating 5.925-6.425 GHz 10.7-11.7 GHz 17.7-19.7 GHz Fequency Range 6.425-7.1 GHz Tx/Rx Spacing 240, 252.04, 260, 490 MHz 1560 MHz 266, 340 MHz RF Channel 30 MHz 30/40 MHz 50/80 MHz Spacing Transmit Power 24 dBm 20 dBm 17 dBm Tx Attenuation 30 dBm 30 dBm 30 dBm Range Receiver -68 dBm -68 dBm -67 dBm Sensitivity (BER=10-6) 4-11 XXXX 01-06 All Frequencies Capacity OC-3/STM-1 or equivalent Modulation Type 16 QAM/128 QAM Frequency Stability 0.0010 ppm Frequency Source Synthesizer RF Channel Selection Via NMS System Configurations Non-Protected (1+0), Protected (1+1) For low frequencies (6-11 GHz) space diversity and frequency diversity can be used to ensure data integrity. A Hitless/Errorless switch must be used for such systems. -3 Receiver Overload (BER=10 ) Better than -20 dBm Unfaded BER Less than 10-13 Antenna 6-18 GHz Specificati 6 GHz 11 GHz 18 GHz on 2 Ft Gain 29.3 dBi -- 38.5 dBi 3 Ft Gain -- -- 42 dBi 4/6 Ft Gain 36.4/40.2 dBi 40.5/43.6 dBi 44.5/48 dBi All Frequencies Polarization Vertical or Horizontal Standard Mounting 1.9 in.-4.5 in. (subject to vendor and antenna OD Pole size) High Performance ETSI class 2, 3 5-11 XXXX 01-06 Network Mangement, Diagnostics, Status & Alarms Type SNMP, in compliance with RFC 1213, RFC 1595 (Sonet MIB) Local or Remote GUI for Windows 95/98/NT or UNIX, capable of NMS Station integration with HP OpenView NMS Interface Ethernet bridge 10Base-T, RS-232 (PPP, SLIP) Local Standard ASCII terminal, serial RS-232 Configuration and Monitoring In-Band Must Use standard embedded communications Management channel DCC bytes D1-D3 for in-band management. TMN NMS functions to be in accordance with ITU-T recommendations for TMN. External Alarms 8 Inputs, TTL-level or contact closure to ground, 5 Outputs, Form C contacts, software configurable RSL Indication Accurate power reading (dBm) must be available at IDU, ODU and NMS Performance Integral with an on board memory per ITU-TG.826 Monitoring Wireless Networking : Network Topologies Point-to-Point Payload 155.52 Mbps Main Channel Payload Types Sonet: OC-3/sts-3, OC-3c/STS-3c, SDH: OC-3, ATM over Sonet/SDH, 3xDS3/ES3, IP over SONET (100BT, 2x100BT), 100BT+8DS1, 100BT+DS3, 2xDS3 + 8xDS1 Physical Electrical: CMI, UTP, STP, optical: single-mode, multi- Interfaces mode, long-haul & short-haul Compatible ITU-T G.703, G.707, G.783, G.823, G.957, G.958, ITU- Standards T I.432, ATM Forum, ETSI ETS 300 147, ETS 300 417, ANSI T1.105, ANSI T1.102-1993, Bellcore GR-253- core, TR-NWT-000499 1544/2048 Kbps Wayside Channel * Available Interfaces T1/E1, Ethernet bridge 10Base-T or RS- 530 6-11 XXXX 01-06 User Channel User Channel 64 Kbps, RS-232 Service Channel Engineering Order Wire ADM CVSD audio channel (64 Kb/s) Interfaces (general): All interfaces must be available as modular plug-in interface units.
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